(A) The correct answer is $A$. Restriction endonucleases are enzymes produced by bacteria as a defense mechanism against bacteriophages (viruses that

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(A) The correct answer is $A$. Restriction endonucleases are enzymes produced by bacteria as a defense mechanism against bacteriophages (viruses that infect bacteria). These enzymes recognize specific $DNA$ sequences and cleave the viral $DNA$,thereby preventing the infection and replication of the virus within the bacterial cell.

Class 12 Biology Biotechnology: Principles and Processes Tools of recombinant DNA technology

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Restriction endonucleases are isolated from some bacteria. Their role in bacteria is

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A
defence against virus
B
synthesis of proteins
C
act as genetic material
D
help in reproduction

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Class 12

Biology Questions

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Biotechnology: Principles and Processes

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Tools of recombinant DNA technology

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Identify the regions marked as $A$,$B$,and $C$ in the given diagram of the cloning vector $pBR322$.

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The first discovered restriction endonuclease that always cuts $DNA$ molecules at a particular point by recognizing a specific sequence of six base pairs is:

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Which enzyme is used to release $DNA$ from a bacterial cell?

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Identify the plasmid among the following.

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An extrachromosomal $DNA$,which can be used as a vector in gene cloning is called:

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Restriction endonucleases are isolated from some bacteria. Their role in bacteria is

Similar Questions

Identify the regions marked as $A$,$B$,and $C$ in the given diagram of the cloning vector $pBR322$.

The first discovered restriction endonuclease that always cuts $DNA$ molecules at a particular point by recognizing a specific sequence of six base pairs is:

Which enzyme is used to release $DNA$ from a bacterial cell?

Identify the plasmid among the following.

An extrachromosomal $DNA$,which can be used as a vector in gene cloning is called:

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